Heat Risk in Wembley Downs, WA: 2026 Assessment
Heat Risk Score
5.5/10Wembley Downs is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, especially during summer months.
Key Facts
- Heat Risk
- Wembley Downs is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, especially during summer months.
- Trend
- increasing
- Suburb
- Wembley Downs, WA
- Overall Risk
- Medium
- Postcode
- 6019
- Highest high-risk exposure
- 18.9% of land (bushfire)
Heat Risk Analysis
Wembley Downs in Western Australia faces elevated extreme heat risk. The Bureau of Meteorology (BOM) reports that Australia's average temperature has increased by approximately 1.5 °C since 1910, with the frequency of extreme heat days rising across most regions.
The urban heat island (UHI) effect can make built-up areas of Wembley Downs warmer than surrounding rural areas, particularly on summer nights. Dark roof materials, limited tree canopy cover, and heat-absorbing surfaces contribute to localised heat stress that varies by property.
The suburb experiences several days above 35°C during summer, increasing the risk of heat stress.
Get an address-level heat risk assessment from ClimateNest for Wembley Downs including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Wembley Downs (postcode 6019) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (18.9% of land in high-risk zones), riverine flood (7.3% of land in high-risk zones), tropical cyclone (7.2% of land in high-risk zones). Exposure is not uniform across Wembley Downs — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Local Hazard Evidence
Historical Events
An extended heatwave resulted in increased hospital admissions due to heat-related illnesses.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of localized flooding.
Est. cost: Medium
Implement Bushfire Management Plans
ImmediateDevelop and implement bushfire management plans for properties near bushland areas, including vegetation management and firebreaks.
Est. cost: Low
Establish Heatwave Response Plan
Near-termCreate a heatwave response plan to protect vulnerable populations, including cooling centers and community outreach programs.
Est. cost: Low
Promote Water Conservation
Long-termEncourage water conservation measures to reduce water stress during periods of drought and heatwaves.
Est. cost: Low
Council & Emergency Services
Explore Wembley Downs Risk Reports
View other climate risk assessments for Wembley Downs:
Frequently Asked Questions
How hot does Wembley Downs get in summer?
Wembley Downs in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Wembley Downs. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Wembley Downs?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Western Australia. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Wembley Downs properties?
Higher temperatures increase cooling demand, which raises electricity costs. ClimateNest provides energy cost projections based on your property's specific exposure to extreme heat days in Wembley Downs and the performance of your building envelope.
What heat mitigation measures work best in Wembley Downs?
Effective heat mitigation includes light-coloured roofing (cool roofs), ceiling and wall insulation, double-glazed windows, external shading, cross-ventilation design, and increasing tree canopy around the property. These measures reduce indoor temperatures and cooling costs.
What share of Wembley Downs is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 18.9% of Wembley Downs in high-risk zones for bushfire, with a further 71.4% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Wembley Downs Safe from Climate Risk?
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